petebson



' July 24, 1923. 1,462,844

. J. O. ANDERSON ET AL CHARGE PREHEA'IINJG AND VAPORIZING DEVICE 3 Sheets-Sheet 1 Filed May 10 1922 M 24, 1923. v 1.462.844 J. O. AND ERSON ET -AL CHARGE PREHEATING AND VAPORI'ZING DEVICE Filed May 10, 1922 Y 3 Sheets-Sheet 2 J. O. ANDERSON ET AL CHARGE PREHEATING AND VAPORIZING DEVICE July 24, 1923.

Filed May 10 1922 3 Sheets-Sheet 5 Patented July 24, 1923.

. UNITED STATES PATENT OFFICE,

.romwoscaa xnnnsox AND osoxn r. PETERSON, or ELY, ivrnvxnsora.

CHARGE PRL'EHEATING AND VAPQRIZING DEVICE.

Application filed May 10,

To all-whom it my concern:

y Be it known that we, J OHN O. ANDERSON and OSCAR P. PETERSON, citizens of the United States, residing at Ely, in the county of St. Louis, State of. Minnesota, have invented new and useful Charge Preheating and vaporizing Devices; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others Skilled in the art to whichit appertains to make and use the same.

- The invention relates to charge preheating and vaporizing devices for internal combustion engines, and has for its object toprovide a deviceof this character comprising valve means supported by an auxiliary pre heating chamber formed on the exhaust pipe of theengine and in communication with a liquid fuel supply, said valve means forming means whereby upon starting of the engine a supply of fuel will be allowed to be sucked through the valve means, mixed with air as it is atomized by. one ofthe valves and then passed to the intake manifold of the engine where it. is conveyed to the combustion chambers of the engine. Also to so construct the valve means whereby after the engine has been started and the exhaust mani fold heated for heating the auxiliary chamber carried thereby, the fuel may be caused to pass through a spraying valve, thence preheated in the auxiliary chamber and sucked to the intake manifold of the engine in a preheated condition thereby volatilizing the char it j With the above and other objects in view theinvention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the invention may be made withinthe scope of what'is claimed without departing from the spirit of the invention.

Inthedrawings:-' wFigureal is a side elevation ofthe device showing the" same applied toa conventional form" 'of internal cdmbustionengine.

.Figure2 isa top planview.

I =Figure 3 is a vertical sectlonal view taken online 3-'3 of Figure 1.

Figure 4 is a sectional ,viewthrough the valvestructure taken on line 4=4 ofFigure 2. Y

i ,Figure 5 is a detail sectional view showing 1922. Serial No. 559,962.

the controlling valve turned 90 degrees in one direction, whereby fuel will be forced to pass through the heating chamber of the exhaust manifold. Y Figure 6 is side elevation of a conventional form of engine, showing the device taken on line 99 of Figure l and showing thfe plug valve turned ninety degrees to the le t.

Referring to the drawing, the numeral 1 7 is a horizontal sectionalwview tion of the valve casing and air passage designates a portion of a conventional form of internal combustion engine and 2; an exhaust manifold carried thereby through which particles of combustion from the en'- gine pass and consequently the hot gases heat the, exhaust manifold. ,Locatedadjacent the engine 1- is an intake manifold 3 through which gases pass to the cylinders of the engine in the direction of the arrow on.

Formed integral with the exhaust manifold v 2 is a preheating casing 3 through. the chamber l of which gases from the carbureter bowl 5 pass and are preheated, said carburetor bowl being connected by means of a pipe 6 preferably to a vacuum tank 7, however it may be connected to any other source of fuel supply. Extending into one end of the chamber 4 is a pipe 8, the other end of which pipe terminates in a noz'zle" 9 which extends into the mixing chamber 10 of the intake manifold 3, preferably between the throttle valve -11 and the choker valve 12 where'gases will be mixedand before they pass to the cylinders of the engine. Threaded into the casing 3 at 13 is a nozzle 15, A which nozzle has threaded thereto at 16 a valve casing 17 which casing' has "secured thereto at 18 the'carbureter bowl. 5. Rotatably mounted in the valve casing 17 is a plug valve 19 which is provided with three ports 20, 21, and 22. Theports 20,21arid 22 are disposed at ninety'degr'ees from'each other and when positioned as shown in Figure 3, the port 21 registers with theport 24, which is in communication withthe carbureter bowl 5. and the port 20 registers with the vertically disposed passage. 25 through which fuel is sucked on the intake impulses of the engine to the horizontally disposed port 26 past the needle valve 27.. It will be seen that on the intake impulses of the piston that fuel from thecarbureter bowl 5 will be sucked therefrom and sprayed or vaporized by the needle valve 27. and then sucked through the connecting pipe 28, the lower portion of the pipe 8, spraying nozzle 9 and thence to the engine through the intake manifold" 3; During the intaking of the charge air is sucked through the vertically disposed passage 29' in the valve casing 17 from the atmosphere and through the port 30in the outer end of the plug valve 19 adjacent its controlling rod 31, thereby thoroughliy mixing the gases and vaporizing the same. It has been found that during the i11- taking-of the engine on the various intake strokes of the pistons thereof that the suction is an vexceedingly strong one, thereby thoroughly vaporizing the gases and conse quently' obtaining the maximum efficiency.

After the engine has been started as above .set forthaduring which time the port 32 has been closed the exhaust manifold has become heated, thereby heating the casing 3 and the air within the chamber't, there fore to preheat the vaporized charge before it passe'sthrough the intake manifold to obtain higher efliciency, the plug valve 19 is rotated in the direction of the arrow at, ninety degrees, which rotation will bring the port 20in registration with the port 24 andnthe port'22 in registration with the port 32 at the same time the fuel passage 25 is closed and consequently on the intake strokes of the pistons, fuel will pass transversely through the valve 19, the port 32 and pass the sprayingnozzle 33, thence vthroughv the nozzle 15'and into the chamber 40f the casing'3. After the vaporized gases enter the chamber 4 where they are thoroughly heated, the gases pass longi- :tudi n'ally through the chamber 4, thence through the pipe 8 to the mixing chamber lOof the intakemanifold 3. By preheating thegasesthey are volatilized insuch a man: ner that they will more quickly ignite and will render the maximum efiiciency. When the plugvalve 19 is so positioned as to direct the gases through the preheating chamber Alas set forth abovethe air port 30 in the .plu-g valve '19- will be shutoff from the intake endfi'dof'the air port 29 and will be disposed-transversely and horizontally and no air can- 'passinto the air port 29. If

theair passage29 were not closed, the suctron through the preheating chamber 4: .would be'brokenandthe device wouldbe inoperative. Whenthe plug valve '19 is turned to therleft in the direction ofthe'arrow Z), Figure-3, from'the position shown in Figure 8,:the ports 20,. 21 and 22 of'the plug valve 19 will supply gasoline to bothiof the-needle valves 27 and 33 and air to the carbureter passage will be admitted through the port 35 as clearly shown in Figure 9., In this position the air passes through'the port 3?, the port 3O in the plug valve, the communleating port 36 in the plug valve, which is disposed at a right angle to the port 30 and thence to the vertically disposed air port 29. This position is only used when desired and preferably when switching from carburetor to generator, however the position is not needed when the car is running on a road, because it will not be noticed if the valve is'turned directly from carburetor position to prcheater and generator position. -Referring to Figure 3 and the position of the plug'l9 shown therein, if said plug is turned one hundred and eighty degrees to the right,

ably mounted on a valve stem 38 and held in engagement with the lower end 39 of the cylindrical member 410* by means of-a coiled spring 41 which surrounds the valve stem 38 and is interposed between the adjusting screw 42 and the valve 37. It will be seen that by adjusting the screw 42 that the tension of the spring 41 may be varied and consequently the power of the suction necessary'to unseat the valve 8? may be varied thereby regulating the necessary amount of air to be sucked into the mixing chamber 10. However during idling sufficient air is admitted through the port 43 in the cylindricalmember 40 to supplyoxygen to the mixing chamber 10.

From theabove it will beseen that a preheater and volatilizer is provided forgaseous charges before they enter the mixing chamber and intake manifold of an internal combustion engine. It will also be seen that means is provided whereby the generating and heating chamber 4 will be thoroughly heated before charges are sucked therethrough thereby preventing flooding of the chamber 4 or danger .of explosion therein. I

The invention having been set forth what is claimed as new and useful is i 1. The combination with an exhaust manifold of an internal combustion-enginman intake manifold, a fuel supply device,'.of

means for volatilizing, vaporizingeand prefold, spaced needle valves cooperating with the port controlled byone of said needlev valves, means for admitting air through avalve seats, a three-way plug valve rotatably mounted in the valve casing and cooperating with a fuel supply port and ports controlled by the needle va ves, a pipe connection direct to the intake manifold from valve to the last named port in the plu means whereby by rotatneedle valve, an

ing the plug valve fuel will. pass by the other needle valve to the preheating chamber and a pipe connection between the preheating chamber and the intake manifold.

2. The combination with a fuel supply de vice, a preheatin chamber carried by an exhaust manifolri of means comprising spaced needle valves and a rotatable plug valve whereby fuel may be allowed to pass to an intake manifold direct past one of said valves, means for admitting air to said last named means, said plug valve forming means whereby fuel will be sucked through the preheating chamber to the intake manifold.

a 3. A controlling valve for controlling the How of fuel from a fuel supply device through an intake manifold by a pipe, or throu h a preheating chamber carried by an ex aust manifold to a pipe connected to the intake manifold, said valve comprising a casing, three ports carried by said casing, needle valves cooperating with seats carried by two of said ports, a three-way plug valve rotatably mounted in the casing and cooperating with said ports and forming means whereby fuel may be admitted direct to the intake manifold, directed through the preheating chamber to the manifold or direct to the manifold and simultaneously to the manifold through the preheating chamber.

4. A controlling valve for controlling the flow of fuel from a' fuel supply device through an intake manifold by means of a pipe, or through a preheating chamber carried by an exhaust manifold to a pipe connected to the intake manifold, said valve comprising a casing, three ports carried by said casing, needle valves cooperating with seats carried by two of said ports, a three.- way plug valve rotatably mounted in the casing and cooperating with all of said ports and forming means whereby fuel may be admitted in vaporized condition to the inrotatably mounted in the casing and cooperating with all of saidports and forming means for direct fuel feeding to the intake manifold or indirect feed throughthe preheating chamber and means for supplying air to the fuel from the atmosphere on direct feeding of fuel.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOHN OSCAR ANDERSON. OSCAR PETER PETERSON.

' Witnesses:

ALL. SUNDHOLM, Gnn'munn CHIMZAR. 

